Need replacement parts for a window top sash guide

A handy person from Bedford, Texas says:
Attached are two images with photos that have been dimensioned of a top sash guide for our windows. We are in need of matching replacement parts in black or white. Black would be preferred.

When the part is removed from the window sash there are two screws at the top in the sash but only one anchors the piece.

Thank you!
User submitted photos of a top sash guide.
Profile picture of Paul
Paul from SWISCO responded:
I think you should check out our 18-166. Compare it to your hardware and see if you agree.
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